← Use Cases
DeFi Platforms

Policy-Controlled MPC Wallets
for DeFi Products

MPC threshold signing gives DeFi products a wallet layer with policy checks, API-native operations, and fewer seed-phrase support issues.

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2-of-3 MPC30
Pain Points

The challenges your team faces.

⚠️

Execution and signing risk need separate controls

Smart contract logic and wallet signing policy should not be treated as the same operational layer.

🔑

Seed phrases create friction

Users lose seed phrases, support teams inherit the pain, and product teams struggle to keep onboarding simple.

🏗️

Hot signers create operational risk

Browser wallets, centralized key stores, and unmanaged hot signers are difficult to govern as flows become more valuable.

🔗

Different ecosystems need different signing schemes

EVM and non-EVM chains often require different signing behavior, policy rules, and event handling.

Solution

MPC threshold signing
for DeFi product flows.

🔐

MPC 2-of-3

Signing requires threshold participation, so wallet operations do not depend on a single private key in one place.

🎯

Policy-based signing

Define allowed actions, spending limits, chain restrictions, and review paths before transactions are signed.

🔗

Multi-scheme support

Support major signing schemes across EVM and non-EVM environments through one wallet infrastructure path.

⚡

API-native wallets

Connect product flows to wallets through REST and events while keeping signing policy under your control.

Your DeFi Protocol / dApp
Smart contracts · Frontend · SDK
BROsettlement API
REST · Ed25519 auth · Policy engine
MPC Core
2-of-3 threshold · Multi-scheme signing
EVM + Non-EVM Chains
ETH · ARB · OP · SOL · TON · BTC · more
Integration

How it fits into
your stack.

BroLabel integrates as an API layer between your product and blockchain networks. Your team keeps product control through RBAC, policy checks, and event handling while BroLabel provides the wallet, signing, ledger, and reconciliation infrastructure.

⚡
REST + WebSocket API
Synchronous REST for wallet creation and transactions. Real-time WebSocket events for confirmations and alerts.
🔐
Ed25519 per-request signing
The most secure API authentication in the industry — asymmetric signatures on every request, no shared secrets.
📅
Guided integration path
From sandbox access to a live operating flow, the integration team helps map wallets, policies, events, and reconciliation.
By the numbers

What you get with BroLabel.

2-of-3
MPC threshold — no single key ever exists
3
signing schemes: ECDSA · EdDSA · Schnorr
0
seed phrases for your users to manage
USDT / USDC readySelf-hosted Co-SignerEd25519 Auth10 chainsWebSocket events
Get Started

Ready to launch?

Add MPC key management to your DeFi protocol

Policy-controlled signing and API-native wallets for DeFi product flows.

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